Daily Sunspot Evaluation
Observation Sheet Wednesday, 18 November 1970
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 7
- Number of spots (f)
- 234
- Relative number (R)
- 304
- Observer
- MA
- Reading
- all checks consistent
- File
- 19701118.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 84 | 5 | 05°E | 344 | |||
| 2 | J – 1 | 4 | 78°E | 268 | |||
| 3 | D – 40 | -12 | 17°W | 3 | |||
| 4 | F – 69 | 15 | 40°W | 35 | |||
| 5 | C – 14 | 9 | 12°W | 358 | |||
| 6 | D – 24 | 15 | 14°W | 0 | |||
| 7 | A – 2 | 12 | 03°W | 349 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.